72506875 has 20 divisors (see below), whose sum is σ = 103554352. Its totient is φ = 49716000.

The previous prime is 72506843. The next prime is 72506881. The reversal of 72506875 is 57860527.

It is not a de Polignac number, because 72506875 - 2⁵ = 72506843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3912 + ... + 12661.

Almost surely, 2^72506875 is an apocalyptic number.

72506875 is a deficient number, since it is larger than the sum of its proper divisors (31047477).

72506875 is an equidigital number, since it uses as much as digits as its factorization.

72506875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600 (or 16585 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 72506875 is about 8515.0968872938. The cubic root of 72506875 is about 416.9907256783.

The spelling of 72506875 in words is "seventy-two million, five hundred six thousand, eight hundred seventy-five".